The breakdown voltage characteristics, the effective secondary emission coefficient and the ionization coefficient of the argon-based mixtures

详细信息    查看全文

• 作者：M. Klas^a ; Š ; . Matejč ; ik^a ; B. Radjenović ; ^b ; P. Papp^a ; M. Radmilović ; -Radjenović ; ^b ; ^{marija@ipb.ac.rs}
• 关键词：Gas mixtures ; Ionization coefficient ; Breakdown voltage
• 刊名：Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
• 出版年：2012
• 出版时间：15 May, 2012
• 年：2012
• 卷：279
• 期：Complete
• 页码：100-102
• 全文大小：436 K

文摘

In this paper, the direct current gas breakdown voltage characteristics in mixtures of argon with molecular gases were studied experimentally in a discharge tube with coplanar metallic electrodes separated . The obtained breakdown voltage curves exhibit U-shaped form and at the right-hand side the curves (high values of pd product) show increase with admixture of a small amount of or . Based on the measured breakdown voltage curves the effective secondary emission coefficient for argon-based mixtures have been estimated. In addition, Two Term Approximation has been used to calculate the ionization coefficients for pure gases and the mixtures. It was shown that addition of a small amount of molecular gases affects more the values of the secondary electron yield than the ionization coefficients.